God's Grace and Chester's Fur

Chester is my 9-year old rottweiler. He's getting older and losing an amazing amount of fur - since he's big, there's a lot of fur. Lately, it's required vacuuming daily to keep things looking nice.

This analogy came to me as I was vacuuming and brushing my dog Chester.

God's grace is like Chester's fur.
There's lots of it.
It's everywhere you look.
No matter how much you suck up, there's still plenty more.
And it seems like he should run out, but he never does.